Double-jacket heating-furnace.



B. Eg. RMNEY. DQLULE JACKET HEATING FURNACE.

' APPfl'c/Tlou msn APR. 23. m4. 1,165,122. Patented De@.21,1915.

2 SHEETS-SHEET I.

E. RAINEY. DOUBLE JACKET HEATING FURNACE.

APPLICATION FILED APR. 23, 1914. Patented ec.- 1915. l

UNITED sra-TrefP.irritantl ormon- BQE- MI'NE'R 0F ST- ewrsiersrfi 'Douaneanexar nna'rinesrunnacn: I.

`l v yspecification of mms raient. pipatntedpec. '21', '1915.lv

animation met April, as, 1914. semi No. saaaas.

To all 'whom it may yconcer-a l I Be it known that I, Banier, a g citizen of the United States, and residing at4 \St. Louis, infthe State of Missouri, have invented certainl new -f and useful .Improve. mentsin Double-Jacket Heating-Furnaces,

of which' the following is a specification.'

This invention relates tok furnaces, and

. more particularly, to furnaces having a` double jacket an a single register.

The invention has among its objects to A supply moisture to the air currents passing through the chambers formed by the fur-'- nace jackets, and, to this lend, to provide within the path of the descending air cur- -rents a body of water. over which the air passes before rising through theinnery casurther objects will appear from the detail description taken in connection with'the v accompanying drawings. =m which:

Figure 1 is a front elevation of a furnace embodying' this invention, Fig. 2 `is a vertical section on'the line 2-2, Fig. 1,- Fig. 3

is a' section partly along the 1i1'1e 3--3, Fig. 1, the section through the` inner' casing being taken along the center of-the ring 31, Fig.

4 is a view loking in the direction ofthe arrow, Fig. ",Y and showing both the inner vlinel fdr the sake-of convenience,Fi s. 5,

and` outer castings, the j oints-being shown in 6 'and l are enlarged detail sections o Fig. '2,'and Fig. 8l is a detail section on the line s, Fi

the furnace'body consists of aneash pit `10, a repot 11, and a radiator v12 discharging into a smoke-pipe 13'." The ash pit 10 is provided with a forwardly projecting fpart 14 formin the ash ...piti passage, the` re pot with a orwardly projecting part 15 forming the re door passage, and the radiator with a forwardlyprojectingypart 16 forming the clean-cut a'ssage.v The furnace body sets on a. base 1 ,provided with a ring 18 integral f therewith, but eccentric'withrespect thereto Referring to the accompanying drawings,

projecting side flanges" 23` and Aa forwardly projecting top 'iange 24. This Afx-91711: wall sets on the ring 18 andis boltedffto ,thev for# wardly projecting parts 14, v15 and 16,'of the furnace body bybolts passing vthrough the front and into lugs or'ears on said parts, as

is usual in furnace constructions, the lugs on the part 15 being shown in Fig. 2. ',The

4flanges 23 and 26k are",y turned ,laterally'las shown at 25 and 26 respectively.. The'front is movided with fire and 'ash pit door`s'27. an 28, and with a removable door or plate.

29 for the clean-out passage. g. l

Rings 30 and 31, preferably ofvv'lfsection,

spectto the furnace body, and are secured at their ends to the-dishedfrontwall 21.,` In ordex` to permit slight adjustmentv of the rings with respect tothe front, their ends are slotted' as shown at 32 and secured in position by bolts 332I The rings `30 and 31 support the inside casing sect1ons34 and 35l 1n spaced relation 'with respect tothe furnace bod 'and these casing sections are secured to t e rings, and at their endsv are,.bolted to the front wall. lThebotjton'i ring 30 is sup' ported o posite the dished frontby abracket 36, shou dered at 37,` andiyforked as shown at' 38 to embrace and rest ono'eofthezradial arms 20. The lower edgeI ofthe casing lsection 35, above the front,"is supported`di` rectl by a shoulder on the'np`per 'edge of.

the ront, as shown in Figzs.v2and The inside casing is thus supported spaced relation. with' respect to the furnace body, and this casing terminatesat..a,.point';re moved-from the door.

A continuous ring 39, preferably of "l"- section, is supported at ,its front end jon the upper iiange 24, and. may be bolted-,to2 the 'are arranged in spaced relation I'vvv'itli reedge 26 of the flange. The outer` casing comprises a pair of sections 40 'and 41, sc-

cured'at their ends tothe edges-.25 .ofi the iside ianges 23 by bolts or otherwise. These sections are secured together by strips 42 4 and 43 provided with bolts 44 so as to clamp the sections therebetween to forma good joint. The strips 42 and 43 may both be of thin metal of the same gage as the casing, and these strips only extend to the edges 25 of the ianges so as to abutthereagai'nst, in order not to .break the continuity between the casing sectlons and the flange. It will be understood, of course, that the casing 11.0

sections 40 and 41" may be of a single piece or of sheet metal. The.- outside casing,

connecting sections are preferably secured' and 52 respectively, of a'single register y60` set into the floor, as shown inFig. 2. These together by braces'.53 so asvto form annitary structure. The lower ends of these con# nections are provided with flanges 54 and.

55, formed to provide shoulders 56 and 57 respectively, so as to telescope with and rest on the inner and outer Vcasing sections and 46'respectively. In this type offur-l naceonly a single register is used', and this register comprises alcentral section 58 and an outside'annular section 59, separated by the lflange 51.' A water -panv 61 opensinto' the furnace below the lower ring 30.

'The generalopera'tion' of this furnace is vwell known. The' cold air enters the' annular section 59 and travels downwardly along the outer `jacket and this air becomcentral section 58.

' ing heatedtravel's upwardly along the inner jacket, and issues into tlie'roorn through the By constructing.: both connections 47 and 48 o f conical form, there will be no interference with the air currents, whether descending or ascending. The continuous ring 39 results lin a' braced construction, and also one which admits of the furnace being readily assembled. yBy

constructing the outside casing of a single piece of metal, or ofsections connected tby a yjoint which terminates at the front, the

joint between this front can bemad'e tight.

vIt will thus be seen that the outside'casing is supported by continuous rings, both at the top and bottom,' wh1ch, ofcourse, re-

sults in a'braced construction. It isobvious 1 that various changes may be made in details of construction without departing from the spirit of this invention, and it is to be understood, therefore, thaty this invention 1s not to be limited to thel specific, construction shown A and described.

isplaimed is -v .1. In ado `uble-jacket furnace, a furnace body, a front Wall secured to said furnace body, said front wall being provided with forwardly projecting flanges at its edges` and top, inner and outer. casings spaced to form inner and outer-jackets, said inner casing terminating above the lower endof said outer casing, a register having inner and outer sections, the inner jacket "discharging air through said inner register section, the' outer jacket receiving air through said,

outer register section, and a water panex' tending through the outerV jacket at a point Having thus described the invention, what below said inner jacket, whereby air currents descending between the outer, and innei" casing are caused to`pass over the water in the pan and thereafter rise through the inner casing'. f

' 2. In a double jacket furnace, a' furnace body, inner and outer casings spaced to form innerl and outer jackets, said inner.VV

casing terminatingabove the lower end of said outer casing, a r`register` having' inner and outer sections, the inner. jacket discharging `air throughy said inner register section, the outer jacket receiving air through said outer register section, and a water pan` extending through the outer.

jacket at a point below said inner jacket, whereby air currents descending between the outer and inner casing are caused to` pass over the water in the pan and thereafter rise through the inner casing.

In testimony whereof I aflix my signature in the presence of these two fwiti'iesses.y

BOYD E. .RAINWZLy Witnesses:

DOUGLAS H. JONES, l J. H. BRUNINGA.`

Ccpies o f this -patent may be obtained for veQ-cents each, by addressing the Commissioner' af'atents,

' Washington, D. C. 

